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The ideal amount of mulch is the square footage of your desired depth in inches divided by 324. Aim to keep your old and/or new mulch at a depth of no more than three or four inches.

Regular maintenance involves raking or leveling out any displaced gravel, filling in low spots, and adding fresh gravel as needed to help prevent potholes and ruts. If you live in an area with heavy rain, checking the drainage and reinforcing the edges periodically can help prevent erosion.

In most cases, it’s better to remove rocks before adding mulch. Layering the two will restrict drainage and plant health, and can create an unpleasant texture underfoot.

Keeping your gravel driveway beautiful—or any gravel structure for that matter—does call for regular maintenance. You may occasionally need to add more gravel to low areas if you notice any pooling after rainfall. Gravel might also become excessively dusty over time. You can compact it with a mechanical compactor, which you can rent for around $80 to $85 per day.

To minimize maintenance requirements for your gravel, it’s important to ensure your land is properly graded before installing the gravel. It’s also helpful to lay landscaping fabric beforehand to keep it in place.